The table below shows the corresponding values of two variables X and Y.

X	33	31	28	25	23	22	19	17	16	14
Y	4	6	4	10	12	10	14	15	18	22

(a) Plot a scatter diagram to represent the data.
(b) Calculate $\overline{x}$, the mean of X and $\overline{y}$, the mean of Y.
(c) Draw the line of best fit to pass through $(\overline{x},\overline{y})$.
(d) From your graph in (c), determine the (i) relationship between X and Y ; (ii) value of Y when X is 24.


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